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ID = 29902
Great Britain (UK)
Brand: Hivac Ltd.; Harrow-on-the-Hill
Tube type:  Beam Power Tube   Power/Output 
Identical to AC/Q
Similar Tubes
Heater different:
Other base and other heater:
First year 1937 The Wireless World, London (WW, 79) Show Report

Base British-7-Pin, old (M7A)
Filament Vf 4 Volts / If 1.35 Ampere / Indirect / Parallel, (AC/DC)
Literature - - Manufacturers Literature   
AC/Q: Beier, Röhrentaschenbuch II, 1958
Anonymous 15 Collector


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